* Introduce a custom kitchensink network
* fix formatting
* Added `--dev` to `substrate-node` arguments.
This commit adds the `--dev` argument to the `substrate-node` to allow
the chain to keep advancing as time goes own. We have found that if this
option is not added then the chain won't advance forward.
* fix clippy warning
* fix clippy warning
This commit updates how logging is done in the differential testing
harness to use `tracing` instead of using the `log` crate. This allows
us to be able to better associate logs with the cases being executed
which makes it easier to debug and understand what the harness is doing.
Omar